How do you solve the following system: #5x - 7y = 12 , 2x + 5y= 2 #?

Question

How do you solve the following system: #5x - 7y = 12 , 2x + 5y= 2 #?

↳Redirected from "Can mixtures be separated by chromatography?"

1 Answer

Impact of this question

2420 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2015-12-06T13:53:33

#5x-7y=12# (Consider this equation as equation 1)
#2x+5y=2# (Consider this equation as equation 2)

#x=(7y+12)/5# (From equation 1)
Substitute this value of x in equation 2
#2((7y+12))/5+5y=2#
#14y+24+25y=10#
#39y=-14#
#y=-14/39#
Substitute this value of y in equation 1
#5x-7(-14/39)=12#
#195x+98=468#
#x=370/195#
#x=74/39#

Science

Math

Humanities

... and beyond

How do you solve the following system: #5x - 7y = 12 , 2x + 5y= 2 #?

1 Answer

Related questions

Impact of this question